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Because two negative numbers when multiplied together make a positive number. Second, two positive numbers multiplied together make a positive number.

Here is an example:

What is the square root of 64?

8 X 8 = 64

-8 X -8 = 64

So the two square roots of 64 are 8 and -8.

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13y ago

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Q: Why does every positive have two square roots?
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